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Narrator: Welcome back! Your watching Ship Shape TV.

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Boat improvement made easy!

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John: What I have here is a

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pre 2011 fuel tank, alright.

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Guys, I don't know if you've ever had a problem

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when you going to fill up

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a tank but it spits back out at ya?

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And you know it's not full.

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Okay you put in a gallon, okay and it's spitting back at ya.

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You put in another gallon and it's spitting back at ya.

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Well there are some inherit problems

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with the old fuel systems.

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And the EPA has come along and said hey,

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we need to solve this problem. We got to keep fuel out of the water

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and we got to keep vapors out of the atmosphere.

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Okay, well we're now down in Miami, Florida

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we are at Perko.

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And I want to introduce you to one of the engineers out here this is Robert Trabue.

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And Robert you have engineered something you have worked with the EPA.

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You've worked with a lot of big companies in

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the automotive industry.

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To give us

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a fuel system on a boat

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that's kind of just like a car.

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You put in the nozzle,

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you fill it up, it doesn't spit back at ya.

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And it automatically shuts off, okay.

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Could you show me some of these

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valves and why

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now there's a little airspace

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with today's fuel tanks?

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Robert: Okay John.

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Well to start off this is a

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inlet check valve.

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This valve is actually going to keep it from

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spitting back and wellback.

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John: Okay hold on, hold on.

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So this is for the fuel fill.

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Fuel comes down in here,

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and it opens up this valve.

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And if it ever gurgles,

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it pops it right off. And it keeps it from spitting back.

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Robert: It keeps it from spitting back John.
John: Okay.

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John: And...

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So this is for the fill.

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We need to have some type of a vent.

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Whenever you're filling up liquid

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into a fuel tank

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air needs to escape.

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And this looks like a vent line

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is this traditional?

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Robert: No. This is a fill limit vent valve.

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Okay, this actually allows it to vent

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as it's filling, okay. But when the fuel

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hits this valve it will shut it off.

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John: And that's what is going to create an airspace

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in the top of the tank. And this is,

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this is what's going to control

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expansion, okay when temperature increases.

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Okay, fuel will expand and if your tank is

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filled to the max it could expand to the point of

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going into the water through a vent.
Robert: Correct.

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John: What do you have in the valving system that's tied in here?

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Robert: These are tank vent valves.

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We have two on this tank.

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This allows it to, as the tank

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expands and contracts this allows

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the vapors to go through -

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through the line into a carbon canister.

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This traps the hydrocarbons from escaping into the atmosphere.

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The vent lines that are coming off of these

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valves will be going through this canister.

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Prior to it going out into the atmosphere.

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John: Okay so this still allows air

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into a tank. This still allows

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air to escape from the tank with

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expansion and contraction from the heat of the day.

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Okay, but it's filtered through carbon

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and carbon is very good

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at capturing hydrocarbons.

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Come on around here! I want to show everybody this.

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Cause this is kind of the full system.

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Okay and this is really ingenious

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Basically here's your fuel fill.

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You know you put your gas nozzle in there.

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Goes down into the tank,

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if it gurgles back up that flapper valve stops it.

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Now here's the vent, okay and it's got a check valve in here.

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So now as it fills up,

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it's only going to fill up to a certain amount.

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It's going to allow an air cushion up here.

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This is kind of the fudge factor.

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Right? Alright, these valves here

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allow for the expansion and contraction of the day.

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Natural, breathing of the tank.

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But now everything is pumped through the

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charcoal Delphi filter.

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Any what is this device right here on the side?

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Robert: That's a p-trap John.
John: Show me.

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Robert: That device

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keeps water from coming into the

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carbon canister.

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John: So if a wave like splashes on the side of the boat

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it's gonna keep the carbon

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collecting hydrocarbons rather than the water.

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Robert: Correct.
John: Okay, now I see that this

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is a rotomolded tank from Moeller.

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And I've been to the factory I've seen these things actually get manufactured.

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Okay and a lot of boat builders will use

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rotomolded tanks.

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Who's the manufacturer of this aluminum one?
Robert: This is an RDS

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aluminum tank. Okay.

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The difference here is the attachment

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on how these fittings are attached to this tank.

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Okay, this happens to be a threaded

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valve that would thread into

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into an existing collar.

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John: In the rotomolded tank this is a

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snap in type of valve.

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What about - do you have flanged fittings?

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Robert: Yes we do John. We also have

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some flanged fittings which would fit

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screwed in into the top of this.

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John: Boat manufacturers are very concerned with options.

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Okay because remember they have to also comply to the Coast Guard.

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And the Coast Guard says for any one of these

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valves any one of these fittings you have to have a pie access.

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You have to have access to that.

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And I wanted to find out variety.

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Does Perko offer the most variety?

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Robert: Absolutely John. Nobody offers more.

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John: Real quick give everybody at home your website.

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Robert: perkofuelsystems.com

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John: Robert thank you so much.

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Right now we need to take a very short time out.

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We'll be right back!